Daily Sunspot Evaluation
Observation Sheet Tuesday, 8 July 1969
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 9
- Number of spots (f)
- 71
- Relative number (R)
- 161
- Observer
- AT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19690708.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 8 | 15E | 65 | |||
| 2 | B – 14 | 13 | 44E | 36 | |||
| 3 | ? – 5 | -17 | 62E | 18 | |||
| 4 | C – 38 | -16 | 12W | 92 | |||
| 5 | A – 1 | -36 | 46W | 126 | |||
| 6 | B – 3 | 8 | 23W | 103 | |||
| 7 | J – 3 | 16 | 47W | 127 | |||
| 8 | H – 4 | 12 | 4W | 94 ⚠ | |||
| 9 | A – 2 | 14 | 08W | 88 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.